使用 iOS 13.3 在 iphone 11、11 pro、11 pro max 上升级应用程序后显示 iOS (swift) 旧启动屏幕

Question

Steps for replicate :

1. Create demo project in Xcode 11.3.
2. Add some text on launch screen.
3. Run Project on iphone (real device) 11, 11 pro , 11 pro max with iOS version 13.3.
4. When project is compiled and application launched stop the debugging process.
5. Now change text on Launch screen and debbugg project again.

Result : Launch screen text not changed. Old text showing on Launch screen .

Answer 1

The system caches launch images and doesn't clear them very proactively. You can add code to clear the cache yourself, although I'd stick this behind a feature flag as circumventing the cache isn't something you probably want to do all the time.

import UIKit

public extension UIApplication {

    func clearLaunchScreenCache() {
        do {
            try FileManager.default.removeItem(atPath: NSHomeDirectory()+"/Library/SplashBoard")
        } catch {
            print("Failed to delete launch screen cache: \(error)")
        }
    }

}

Code snippet taken from: https://rambo.codes/posts/2019-12-09-clearing-your-apps-launch-screen-cache-on-ios